Giving my two cents:
I think the wiki is worth consideration due to the actual work and analysis behind its ratings, but don't just check the pages and take the rating at face value, but go deeper and find out the explanation behind said rating to reinforce your own interpretation.
The wiki is one of many point of views and possible interpretations. Within the wiki is fine to follow it, but for outside debating it's better to consider it and contrast to what other sources say. The site tries its best to be factual, but as mentioned, interpretation is a big part on VS analysis, and that changes a lot from source to source and inaccuracies and mistakes are inevitable.
However that's why the wiki has revisions and updates itself constantly to correct these and polish itself: its willing to accept its mistakes and correct them, however due to the sheer amount of content, different verses, limited staff and boatload of different interpretations from different people, they can't just change everything all time when something is proposed, it needs to be analyzed and discussed to ensure the changes are appropiate. Otherwise, Goku, Superman, Saitama and the like would have a different profile with every page refresh.
Playing devil's advocate for a bit, a good chunk of the bad rap the site gets comes from what seems to be the same issue: incredulity regarding how powerful fictional characters can be. I've... seen a couple of times the issue: someone is like "X is Town Level? No way!", but don't really try to find out why X was given that rating, tries to change the wiki or makes a thread claiming how the wiki is wrong but without sufficient backup just goes with his own interpretation, when he finds skepticism regarding his proposal or finds he can't just edit the page it leads to either confrontations or leaving disgruntled. After that, they go on other sites and say how the wiki is nonsense and how he was mistreated on it. That's not to say we are squeaky clean, though, we've all gotten things wrong or acter poorly at some point, it's just that "Your info is nonsense, X is totally Y tier, because he never blew up a town" or "This other site or user said X is Z tier, so you're wrong" without elaboration is not much to work with.
The opposite is also true, though, and some people want their preferred verses to be stronger than anything and actually feel offended when they find out the site doesn't consider said verse as formidable as they initially thought or a verse they dislike is stronger. This kinda makes the accusation of fanboyism feel hypocritical, given preference for a verse is the reason this issue happens many times.